桂枝配方颗粒、饮片、水煎剂HPLC指纹图谱相关性研究

摘要

Objective To study the correlation of fingerprint chromatograms of Cinnamomi Ramulus formula granules, decoction pieces and water decoction by HPLC; To investigate the difference of main chemical constituents among different forms. Methods The Diamonsil C18 column (4.6 mm × 250 mm, 5 μm) was used with mobile phase of acetonitrile and 0.1% phosphoric acid at the flow rate of 1.0 mL/min, with detection wave of 280 nm and temperature of 30 ℃. The detection of 10 batches of Cinnamomi Ramulus formula granules, 10 batches of decoction pieces and 10 batches of water decoction were established respectively. Results Totally 12 peaks in the HPLC fingerprint chromatogram from 10 batches of formula granules could be tracked in the water decoction; 10 peaks in the HPLC fingerprint chromatogram could be tracked in the decoction pieces. Three components, such as protocatechuic acid, coumarin and cinnamic acid were verified. Conclusion The main chemical components of Cinnamomi Ramulus formula granules and water decoction are basically the same, and the common component contents have similar proportion.%目的 采用HPLC对桂枝配方颗粒、饮片和水煎剂的指纹图谱进行相关性研究,考察三者之间化学成分的差异.方法 采用Diamonsil C18色谱柱(4.6 mm×250 mm,5μm),流动相为乙腈-0.1%磷酸,梯度洗脱,检测波长280 nm,流速1.0 mL/min,柱温30℃.分别建立10批桂枝配方颗粒、10批饮片、10批水煎剂的指纹图谱.结果 桂枝配方颗粒HPLC指纹图谱中的12个共有峰均可在水煎剂中得到追踪,有10个可在饮片中得到追踪,并指认出原儿茶酸、香豆素、肉桂酸3种成分.结论 桂枝配方颗粒与水煎剂的主要化学成分组成基本相同,其共有成分含量比例接近.